Answer Posted / suma

select distinct(emp_name) from employees;

Why sql query is slow?

729

---

What is triggering circuit?

768

---

What is dml and ddl?

713

---

Is a secondary key the same as a foreign key?

673

---

What does t sql mean?

702

---

---

Explain how you can copy a file to file content and file to pl/sql table in advance pl/sql?

735

---

What is a call statement? Explain with an example.

745

---

What are the different ways to optimize a sql query?

678

---

is it possible to pass an object or table to a procedure as an argument?

816

---

What is a natural join sql?

705

---

what is data control language? : Sql dba

746

---

What is column?

721

---

How to avoid using cursors? What to use instead of cursor and in what cases to do so?

864

---

What is the plv (pl/vision) package offers?

795

---

Why is a primary key important?

727

---